Two Nitrogen Atoms In The Fused Or Bridged Ring System Patents (Class 524/92)
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Patent number: 6569531Abstract: An additive-containing resin molded article which suffers from little exudation or vaporization of an additive and sustains the effect of the additive for a long period of time and in which reductions in various physical properties due to molecular weight reduction of a polyester resin are suppressed, and a process for producing the same are provided. When a polyester resin 5 is heat-melted and molded into a prescribed shape by means of an extruder 1, etc., a bi- or multi-functional additive 6 having at least one of a functional hydroxyl group, carboxyl group, amino group, and ester bond is added and allowed to react with the polymer molecules of the molten polyester resin 5 to obtain an additive-containing resin molded article 50 in which the additive 6 is bonded to the polymer molecules through an ester linkage or an amide linkage.Type: GrantFiled: October 16, 2000Date of Patent: May 27, 2003Assignee: Takiron Co., Ltd.Inventors: Hirofumi Takase, Yoichiro Makimura
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Patent number: 6534566Abstract: An ink jet ink composition comprising water, a humectant, and a water-dispersible polymeric latex having contained therein a delocalized cationic azo dye having the following formula:Type: GrantFiled: August 22, 2000Date of Patent: March 18, 2003Assignee: Eastman Kodak CompanyInventors: Huijuan Chen, Leslie Shuttleworth
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Publication number: 20030008950Abstract: Optical disc adhesives and lacquers comprising components that undergo free-radical polymerization when exposed to radiation and a cure-enhancing amount of R-SH, wherein R is a heterocycle; cationic, free-radical, and hybrid adhesives for digital versatile discs (DVD) comprising components that undergo cationic and/or free-radical polymerization when exposed to radiation and a corrosion-inhibiting amount of R-SH, R1-R2 and/or an acyclic thiol, wherein R is a heterocycle, R1 is a substituted or unsubstituted phenyl as a substituent of R2 or forming with R2 a bicyclic structure, and R2 is a heterocycle comprising at least one double bond and at least two N atoms; and optical media, e.g., CD-DA, CD-ROM, CD-R, DVD, and the like, that include one, or a combination, of the foregoing inventive adhesive or lacquer compositions.Type: ApplicationFiled: November 13, 2001Publication date: January 9, 2003Applicant: DSM N.V.Inventors: Chander P. Chawla, Michael G. Sullivan, Vadim V. Krongauz, Christopher F. Tronche
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Patent number: 6489385Abstract: A highly saturated nitrile group-containing copolymer rubber having a Mooney viscosity lowered by 15 points or more by applying a high shearing force thereto in the presence of an aging inhibitor, which has a Mooney viscosity of 5-35 and a weight average molecular weight/number average molecular weight ratio of 3-5, and exhibits an increase in Mooney viscosity of 10 points or fewer while the rubber is allowed to stand in the air at room temperature for 30 days. The viscosity of the copolymer rubber changes only to a minor extent with the lapse of time, and the copolymer rubber has excellent processability and storage stability. The copolymer rubber can be used as a heat-resistant rubber composition comprising the copolymer rubber and other heat-resistant rubber. The copolymer rubber can be used as a composite thereof with a fiber, which has good mechanical strength.Type: GrantFiled: May 20, 1999Date of Patent: December 3, 2002Assignee: Nippon Zeon Co., Ltd.Inventors: Yoshinori Fujii, Atsumi Ikeda
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Publication number: 20020115753Abstract: Photostable, silylated benzotriazole compounds of formula (I) or (II) 1Type: ApplicationFiled: August 1, 2001Publication date: August 22, 2002Inventors: Ramanathan Ravichandran, Joseph Suhadolnik, Mervin Wood, Rong Xiong
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Patent number: 6437028Abstract: An elastic copolymer composition which contains a copolymer having a content of polymer units based on vinylidene fluoride as low as from 0.5 to 15 mol %, which is satisfactory in polyol vulcanizability and which gives a vulcanizate excellent in heat resistance and oil resistance. This composition comprises a tetrafluoroethylene (35 to 65 mol %)/propylene (20 to 50 mol %)/vinylidene fluoride (0.5 to 15 mol %) copolymer, an organic quaternary ammonium hydroxide or a salt of an organic quaternary phosphonium compound with a nitrogen-containing heterocyclic compound, an organic polyhydroxy compound, and a metal oxide or a metal hydroxide, and optionally contains an amine compound.Type: GrantFiled: November 7, 2000Date of Patent: August 20, 2002Assignee: Asahi Glass Company, LimitedInventors: Tetsuya Miwa, Takeo Kaneko, Masayuki Saito, Junichi Nakamura
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Patent number: 6387296Abstract: Paper coating slips having high whiteness, high greying limit and high lightfastness can be prepared with the aid of whitened finely divided plastics.Type: GrantFiled: June 27, 1997Date of Patent: May 14, 2002Assignee: Bayer AktiengesellschaftInventors: Udo Eckstein, Joachim König, Fritz Puchner, Ulrich Feldhues, Matthias Köcher, Uwe Vogt, Eckhard Wenderoth
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Patent number: 6384097Abstract: An amine catalyst for production of a polyurethane and a polyisocyanurate is provided which comprises a quaternary ammonium compound represented by General Formula (1): where R1 to R6 are independently a linear or branched saturated hydrocarbon group of 1 to 4 carbon atoms; R7 and R8 are independently a linear or branched, saturated or unsaturated hydrocarbon group of 2 to 12 carbon atoms; n is a number of 0 to 3, provided that at n=0 any one of R1, R2 and R3, and R5 and/or R6 may be linked together to form a heterocycle, or at n=1, 2, or 3, R5 or R6 and R4 may be linked together to form a heterocycle; A is a carbonate group or an organic acid group; and X is number of 1 to 2. The catalyst has high activity in formation of polyurethane foams and polyisocyanurate foams, having less odor, and producing foams of high fire retardance, having high curability, high retarding effect, and low corrosiveness.Type: GrantFiled: August 27, 2001Date of Patent: May 7, 2002Assignee: Tosoh CorporationInventors: Katsumi Tokumoto, Yutaka Tamano, Shuichi Okuzono
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Patent number: 6384177Abstract: An amine catalyst for production of a polyurethane and a polyisocyanurate is provided which comprises a quaternary ammonium compound represented by General Formula (1): where R1 to R6 are independently a linear or branched saturated hydrocarbon group of 1 to 4 carbon atoms; R7 and R8 are independently a linear or branched, saturated or unsaturated hydrocarbon group of 2 to 12 carbon atoms; n is a number of 0 to 3, provided that at n=o any one of R1, R2 and R3, and R5 and/or R6 may be linked together to form a heterocycle, or at n=1, 2, or 3, R5 or R6 and R4 may be linked together to form a heterocycle; A is a carbonate group or an organic acid group; and X is number of 1 to 2. The catalyst has high activity in formation of polyurethane foams and polyisocyanurate foams, having less odor, and producing foams of high fire retardance, having high curability, high retarding effect, and low corrosiveness.Type: GrantFiled: August 27, 2001Date of Patent: May 7, 2002Assignee: Tosoh CorporationInventors: Katsumi Tokumoto, Yutaka Tamano, Shuichi Okuzono
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Patent number: 6384113Abstract: This invention relates generally to a new class of benzocycle-substituted pyrimidines and triazines and the use thereof to protect coatings, polymers and organic compounds against degradation by environmental forces, inclusive of ultraviolet light, actinic radiation, oxidation, moisture, atmospheric pollutants and combinations thereof. The new class of benzocycle-substituted pyrimidines and triazines comprises a benzocycle attached to the triazine or pyrimidine ring, and preferably an additional aryl ring containing a hydroxyl group, either free or blocked to form a latent stabilizer, ortho- to the point of attachment to the triazine or pyrimidine ring.Type: GrantFiled: August 10, 2001Date of Patent: May 7, 2002Assignee: Cytec Technology Corp.Inventors: Ram B. Gupta, Dennis J. Jakiela, Robert G. Fischer
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Patent number: 6375732Abstract: Hybrid pigments of diketopyrrolo[3,4-c]pyrrole pigments and pigments bearing “acid” hydrogens like —NH, —OH or —CONH— groups, a process for the manufacturing of the hybrid diketopyrrolo[3,4-c]pyrrole pigments with pigments bearing “acid” hydrogens like —NH, — OH or —CONH— groups and their use as a pigment.Type: GrantFiled: March 30, 2000Date of Patent: April 23, 2002Assignee: Clariant Finance (BVI) LimitedInventors: Bansi Lal Kaul, Bruno Piastra, Valérie Wolf
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Patent number: 6346567Abstract: Resilient elastomeric mounts and in particular, natural rubber engine mounts, which maintain good mechanical and dynamic properties at temperatures in excess of 250° F., are provided. The natural rubber engine mounts of the present invention are thus ideal for use in underhood applications which require durability at high temperatures, i.e. from about 250° F. to about 280° F. The mounts generally comprise rubber produced by an efficient vulcanization (EV) system, which employs a curing system having a sulfur accelerator and sulfur donor. In a preferred composition, the accelerator is a sulfonamide and thiazole present at a level of about 1.2 phr to about 1.8 phr, and the sulfur donor is tetramethyl thuiram disulfide present at a level of about 0.1 phr to about 0.4 phr.Type: GrantFiled: May 6, 1996Date of Patent: February 12, 2002Assignee: Cooper-Standard Automotive Inc.Inventor: Zina Nozik
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Patent number: 6339117Abstract: The present invention relates to polymers whitened with optical brighteners obtained by (a) emulsion polymerization of acrylonitrile with or without a comonomer in the presence or absence of a graftable substrate, and (b) addition of an optical brightener before, during, or after the emulsion polymerization.Type: GrantFiled: February 28, 2000Date of Patent: January 15, 2002Assignee: Bayer AktiengesellschaftInventors: Udo Eckstein, Siegfried Korte, Ulrich Feldhues, Hans-Peter Geiger, Bernhard Hunke, Thomas Roick, Günter Sackmann
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Publication number: 20010036979Abstract: An ink-jet ink which is excellent in handling properties, odor, safety, and dispersion stability of a coloring particulate, and which shows no paper-dependency, manifests excellent color developing property and hue when printed on any type of paper, and has various excellent properties. In the ink-jet ink, a coloring composition containing a coloring particulate containing an ionic-group-containing polymer, an oil-soluble dye, and a hydrophobic high-boiling-point organic solvent having a boiling point of at least 150° C., the coloring particulate being dispersed in a water-based medium, wherein content of the hydrophobic high-boiling-point organic solvent in the coloring composition is at least 25% by mass and not more than 95% by mass with respect to a total amount of the ionic-group-containing polymer, the oil-soluble dye, and the hydrophobic high-boiling-point organic solvent.Type: ApplicationFiled: March 8, 2001Publication date: November 1, 2001Inventors: Junichi Yamanouchi, Makoto Yamada
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Patent number: 6300395Abstract: A hydrophilic coating having excellent hydrophilicity, which can prevent offensive odor generation, and which has a good antibacterial performance and formability, is formed on an aluminum-containing metal material by coating an aqueous hydrophilization treating liquid containing (A) a glycidyl group-containing, water-soluble organic compound; (B) a water-soluble polymeric or polymerizable compound having a tert-amino group and at least one hydrophilic functional group selected from sulfonic, phosphonic, carboxyl, polyalkyleneglycol, hydroxyl and amide groups; and (C) an antibacterial agent not decomposing at 100° C. or lower, on an aluminum-containing metal material; and heat-drying the coated liquid.Type: GrantFiled: December 5, 1995Date of Patent: October 9, 2001Assignee: Nikon Parkerizing, Co., Ltd.Inventors: Ryosuke Sako, Tomohiro Ohsako, Tatsuo Hibino
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Patent number: 6294598Abstract: Use of solid, rubber-soluble or rubber-dispersible monothiols as stabilizers in melted pressure-sensitive adhesive compositions based on natural rubber or synthetic rubbers, suitable tackifying resins and promoters for increasing the radiation crosslinking yield.Type: GrantFiled: June 8, 1999Date of Patent: September 25, 2001Assignee: Beiersdorf AGInventors: Werner Karmann, Claus Grobe
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Patent number: 6284432Abstract: A coloring composition for a color filter, which comprises (i) an organic pigment, (ii) a binder, and (iii) a pigment derivative which is an organic pigment to which a sulfonate group and a sulfonamide group are bonded or a salt thereof, is provided, and using the coloring composition, a color filter which manifests excellent coat property, has not special color unevenness and has excellent contrast can be produced.Type: GrantFiled: April 6, 1999Date of Patent: September 4, 2001Assignee: Sumitomo Chemical Company, LimitedInventors: Toshiki Furubayashi, Keisuke Ito, Kaori Yamamoto
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Patent number: 6281261Abstract: The present invention is directed to silicone formulations which are capable of being rapidly cured to tough elastomeric materials through exposure to UV radiation. The cured products demonstrate high resistance to flammability and combustibility.Type: GrantFiled: November 20, 2000Date of Patent: August 28, 2001Assignee: Loctite CorporationInventor: Lester D. Bennington
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Patent number: 6280511Abstract: A microbead comprising at least one thermoplastic polymers having distributed one or more compounds which are pigment precursors, the melting temperature of the lowest-melting polymer of the microbead being at least higher than the lowest temperature required to transform all pigment precursors in the microbead into the respective pigments.Type: GrantFiled: October 27, 1999Date of Patent: August 28, 2001Assignee: Ciba Specialty Chemicals Corp.Inventors: Ulrich Schaedeli, Patrice Bujard
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Patent number: 6268416Abstract: A colored silicone rubber adhesive film and methods of adhesion by means of the silicone rubber adhesive film are disclosed. The silicone rubber adhesive film comprises (A) an organopolysiloxane; (B) a wet method hydrophobized reinforcing silica; (C) an organohydridopolysiloxane; (D) an azo or anthroquinone pigment, and (E) a curing accelerator. The colored silicone rubber adhesive film is easily handled, possesses excellent workability, and most important, makes it possible to verify the degree and the point of completion of the curing due to the presence of the pigment.Type: GrantFiled: January 27, 1999Date of Patent: July 31, 2001Assignee: Dow Corning Toray Silicone Company, Ltd.Inventor: Kazuo Hirai
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Publication number: 20010008912Abstract: The invention provides novel pigment dispersants of the formula (I) 1Type: ApplicationFiled: December 1, 2000Publication date: July 19, 2001Applicant: Clariant GmbHInventors: Joachim Weber, Felix Wendelin Grimm, Erwin Dietz
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Patent number: 6261358Abstract: Solid pigment preparations comprising as pigment at least one metal complex of an azo compound which in the form of its tautomeric structures conforms to the formula (I) wherein the rings X and Y may each independently bear one or two substituents selected from the group consisting of ═O, ═S, ═NR7, —NR6H7, —OR6, —SR6, —COOR6, —CN, —CONR6R7, —SO2R8, alkyl, cycloalkyl, aryl and aralkyl, the sum total of the endo- and exocyclic double bonds being three for each of the rings X and Y, R6 is hydrogen, alkyl, cycloalkyl, aryl or aralkyl, R7 is hydrogen, cyano, alkyl, cycloalkyl, aryl, aralkyl or acyl, R8 is alkyl, cycloalkyl, aryl or aralkyl, R1, R2, R3 and R4 are each independently hydrogen, alkyl, cycloalkyl, aryl or aralkyl and furthermore, as indicated by the broken lines in the formula (I), may form 5- or 6-membered rings to which further rings may be fused, R5 is —OH, —NR6R7, alkyl, cycloalkyl, aryl oType: GrantFiled: October 8, 1999Date of Patent: July 17, 2001Assignee: Bayer AktiengesellschaftInventors: Richard Sommer, Frank Linke, Udo Herrmann, Gunther Stolp
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Patent number: 6232381Abstract: The process of this invention can be utilized to stabilize tin-coupled rubbery polymers. This process involves adding a chelating diamine or a sodium alkoxide to the rubbery polymer after the tin coupling has been carried out. This invention more specifically discloses a process for improving the stability of a tin-coupled rubbery polymer which comprises adding a sodium alkoxide to the tin-coupled rubbery polymer subsequent to the time at which the tin-coupled rubbery polymer is coupled. Sodium alkoxide is a representative example of a sodium alkoxide that can be used to stabilize the tin-coupled rubbery polymer.Type: GrantFiled: July 30, 1999Date of Patent: May 15, 2001Assignee: The Goodyear Tire & Rubber CompanyInventors: Wen-Liang Hsu, Adel Farhan Halasa
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Patent number: 6084035Abstract: A resin composition for powder coating, comprising(A) a carboxyl group-containing resin having a number average molecular weight of 1000 to 20000, an acid value of 5 to 200 and a glass transition temperature of 30 to 120.degree. C.,(B) bis(.beta.-methylglycidyl)terephthalate of the formula (1): ##STR1## as a curing agent, and (D) at least one compound selected from the group consisting of amines having the linkage of the formula (2): ##STR2## in the molecule, a triarylphosphines and onium salts as a ring-opening polymerization inhibitor, the equivalent ratio of (.beta.-methylglycidyl group of the component (B))/(carboxyl group of the component (A)) being 0.5 to 3.0. The composition can give a product of curing excellent in impact resistance, weathering resistance and so on.Type: GrantFiled: November 4, 1998Date of Patent: July 4, 2000Assignee: Nissan Chemical Industries, Ltd.Inventors: Satoru Miyake, Hisao Ikeda, Toshinari Koda, Motohiko Hidaka
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Patent number: 6051164Abstract: A polymeric article, such as an extruded or molded article or a biaxially oriented tape or film, and a method of stabilizing such a polymeric article to protect the article from degradation due to exposure to UV light. The article is formed by blending a polymeric material with from about 50 to about 5,000 ppm of at least one ortho hydroxy tris-aryl triazine light absorber and from about 500 ppm to about 1.25 percent of at least one oligomeric, polymeric, or high molecular weight HALS having a molecular weight of at least about 500, wherein the weight ratio of HALS to triazine light absorber is from about 3:1 to about 20:1, to form a stabilized polymeric composition, and forming an extruded or molded article or a biaxially oriented tape or film from the stabilized polymeric composition.Type: GrantFiled: April 30, 1998Date of Patent: April 18, 2000Assignee: Cytec Technology Corp.Inventor: Sari-Beth Samuels
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Patent number: 6048918Abstract: 1,4-Diketopyrrolopyrroles of the formula ##STR1## in which A and B independently of one another are a group of the formula ##STR2## R.sub.1 is a long-chain radical containing a reactive group capable of polymerization, andR.sub.2 is C.sub.1 -C.sub.6 alkyl, ##STR3## or R.sub.1. For the definition of the radicals R.sub.3 -R.sub.9, refer to claim 1.The novel diketopyrrolopyrroles are suitable for preparing colored polymers with unexpectedly advantageous color effects.Type: GrantFiled: September 3, 1998Date of Patent: April 11, 2000Assignee: Ciba Specialty Chemicals CorporationInventors: Sameer Hosam Eldin, Abul Iqbal
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Patent number: 6025433Abstract: To offer thermosetting paint compositions resistant to yellowing to brass, which give paint films of excellent resistance to yellowing due to brass, low-temperature curability, weather resistance, resistance to yellowing after stoving, acid resistance, scratch resistance, solvent resistance, adhesion and appearance. Thermosetting paint compositions, which are thermosetting paint compositions which are resistant to yellowing due to brass, characterized in that the paint-film-forming components include (A) a compound which has per molecule at least 2 functional groups which can react with an isocyanate group, at 49.6-90 wt %, (B) a blocked isocyanate which has par molecule at least 2 isocyanate groups blocked by an azole blocking agent, at 9.6-50 wt %, (C) an ultraviolet absorber and/or free radical scavenger, at 0.2-5 wt %, (D) an organotin compound at 0.1-3 wt %, and (E) an amino resin at 0.1-30 wt %.Type: GrantFiled: July 21, 1998Date of Patent: February 15, 2000Assignee: BASF Coatings AGInventors: Kishio Shibatoh, Souichi Mori, Yasuhiro Monma
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Patent number: 5998517Abstract: The present invention relates to a composition for the detection of the growth of respiring microorganisms in a sample, which comprises:(a) tris(4,7-diphenyl-10-phenanthroline)ruthenium dichloride pentahydrate;(b) a hydroxyl functional group;(c) an organosilicon polymer;(d) an organohydrogensilicon compound; and(e) a catalyst;and a method for preparing said composition.Type: GrantFiled: June 5, 1998Date of Patent: December 7, 1999Assignee: Becton, Dickinson and CompanyInventors: Thomas M. Gentle, Jr., Ming-Hsiung Yeh
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Patent number: 5997628Abstract: Disclosed are red shade yellow compositions characterized by the formula: ##STR1## wherein X is a lower alkyl or a --COOR.sub.1 group; wherein R.sub.1 is a hydrogen or lower alkyl group; each Y is independently a lower alkyl, lower alkyloxy or halogen group; a is 0, 1, or 2; and M is a divalent metal. Also disclosed is a process for preparing red shade yellow pigment compositions prepared by initially a diazonium component comprised of one or more aromatic amines wherein at least one of said amines is a 1-sulfo-2-naphthylamine; and thereafter coupling the diazonium component with a coupling component comprised of a pyrazolone coupler to form a dye, and metallizing said dye with at least one divalent metal.Type: GrantFiled: June 8, 1998Date of Patent: December 7, 1999Assignee: Engelhard CorporationInventor: Amrit Pal Bindra
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Patent number: 5989453Abstract: A process for the manufacture of pigments comprising a colored composition incorporated in a polycondensation resin, wherein the reactants for the formation of the polycondensation resin and the colored composition are introduced continuously into an extruder, preferably at a temperature of between 100.degree. C. and 280.degree. C., the mixture is caused to travel forward in the extruder, at the end of reaction the mixture is withdrawn continuously from the extruder, and is deposited continuously onto a conveyor belt, broken up into thermoset flakes, and cooled, the conveyor belt having means for cooling and means for detaching the flakes from the belt. The process is particularly suitable for the preparation of fluorescence pigments. Also disclosed are compositions comprising diketo-pyrrolo-pyrrole colorants and certain polyester or polyamide resins as well as a process for the preparation of the compositions.Type: GrantFiled: March 7, 1994Date of Patent: November 23, 1999Assignees: Societe Nouvelle de Chimie Industrielle S.A., Ciba Specialty Chemicals Holding, Inc.Inventors: Michel Jean Marcq, Martin Tanner
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Patent number: 5962683Abstract: A description is given of compounds of the formula I ##STR1## where r is 0 or 1 and y is a number from the range 1-3; X is a direct bond or --NR.sub.8 --, --CO--, --CONH-- or --COO-- or a divalent aliphatic or mixed aromatic-aliphatic C.sub.1 -C.sub.18 hydrocarbon radical;Z is an aromatic, aliphatic or mixed aromatic-aliphatic C.sub.3 -C.sub.18 hydrocarbon radical which is interrupted in the aliphatic moiety by one or more divalent functional groups, in each case in a carbon-carbon single bond, and/or in the aromatic or aliphatic moiety by one or more divalent functional groups, in each case in a carbon-hydrogen bond, possible functional groups being --O--, --NR.sub.8 --, --S--, --SO--, --SO.sub.Type: GrantFiled: June 17, 1997Date of Patent: October 5, 1999Assignee: Ciba Specialty Chemicals Corp.Inventors: Alfred Steinmann, Rolf Mulhaupt
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Patent number: 5959071Abstract: A polythioether has the formulaR.sup.1 --?--R.sup.2 --S--CH(CH.sub.3)--S--!.sub.n --R.sup.2 --R.sup.1whereinR.sup.1 denotes a thiol group, a hydroxyl group, an unsubstituted amine group, a monoalkyl-substituted amine group, a monovalent radical substituted with at least one hydroxyl group, unsubstituted amine group or monoalkyl-substituted amine group, or a group that is non-reactive in the presence of an acid catalyst,R.sup.2 denotes a divalent radical, andn is an integer from 1 to 60.The polythioether is a liquid at room temperature and pressure.Type: GrantFiled: March 31, 1998Date of Patent: September 28, 1999Assignee: Courtaulds Aerospace, Inc.Inventors: Suzanna Elaine DeMoss, Jonathan Doherty Zook
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Patent number: 5919847Abstract: A composition comprising a blend of a thermoplastic resin and at least one compound or oligomer which is ##STR1## wherein R.sub.f is a perfluorinated moiety which may contain one or more catenary ether oxygen atoms, Q is a linking group selected from alkylene groups having 1 or 2 carbon atoms, sulfonamido groups or combinations thereof, R is an alkyl group, R.sup.1 is a perfluoroalkyl group, R.sup.2 is an alkyl group which may be straight chain or branched and n is a number of from 2 to 40.Type: GrantFiled: December 2, 1997Date of Patent: July 6, 1999Assignee: Minnesota Mining and Manufacturing CompanyInventors: Alan D. Rousseau, Marvin E. Jones, Seyed A. Angadjivand
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Patent number: 5916939Abstract: An internal mold release system is provided which comprises (a) a polysiloxane compound; and (b) an amine salt of a carboxylic acid.Type: GrantFiled: January 20, 1995Date of Patent: June 29, 1999Assignee: Imperial Chemical Industries PLCInventors: Herbert Russell Gillis, Paul William Mackey
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Patent number: 5916937Abstract: A heat cured fluorosilicone rubber exhibiting improved compression set comprises N,N'-meta-phenylenedimaleimide.Type: GrantFiled: September 30, 1997Date of Patent: June 29, 1999Assignee: General Electric CompanyInventor: Edwin R. Evans
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Patent number: 5910577Abstract: Compounds of the formula (I) ##STR1## in which R.sup.1 and R.sup.2 are identical or different and are Cl, COO(C.sub.1 -C.sub.4)-alkyl, CONH.sub.2, CONCH.sub.3, CON(CH.sub.3).sub.2 or SO.sub.2 NRR', where R and R' are identical or different and are hydrogen, C.sub.1 -C.sub.4 -alkyl or phenyl, it being possible for phenyl to be substituted by methyl, ethyl, methoxy, ethoxy or halogen,R.sup.3 is hydrogen, methyl, methoxy, ethoxy, chloro or bromo, andR.sup.4 is hydrogen, C.sub.1 -C.sub.3 -alkyl, chloro or bromo,are useful yellow pigments with high light fastness and weather fastness properties.Type: GrantFiled: July 31, 1998Date of Patent: June 8, 1999Assignee: Clariant GmbHInventors: Hans Joachim Metz, Joachim Weber
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Patent number: 5871575Abstract: A diketopyrrolopyrrole of formula ##STR1## in its .beta.-modification. The novel .beta.-modification is also suitable as pigment for coloring high molecular weight organic materials. In comparison to the .alpha.-modification, it has a shade shifting towards blueish red, enhanced color strength and chroma as well as an enhanced resistance to heat.Type: GrantFiled: August 22, 1997Date of Patent: February 16, 1999Assignee: Ciba Specialty Chemicals CorporationInventors: Thomas Ruch, Olof Wallquist
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Patent number: 5741837Abstract: A syndiotactic polystyrene composition is improved which exhibits improved crystallization rate. The improved syndiotactic polystyrene composition contains (a) a syndiotactic polystyrene; and (b) a nucleating agent which is selected from the group consisting of two types of compounds represented by the following formulas, respectively: ##STR1## In Formulas I and II, the radicals R.sub.1 and R.sub.2, which can be the same of different, are C.sub.1 to C.sub.5 alkyl groups, X is a halogen group, preferably a bromide group, and n is an integer from 1 to 5. In the present invention, the nucleating agent is provided at 0.01 to 5 part, by weight, per 100 parts, also by weight, of the syndiotactic polystyrene resin. An example of Formula I compound is 2-hydroxybenimidiazole, and an example of the Formula II compound is bis(phenylbromide) methane.Type: GrantFiled: March 27, 1997Date of Patent: April 21, 1998Assignee: Industrial Technology Research InstituteInventors: Chung-Jen Wu, Chien-Ming Chen, Hsien-Ming Chen, Hurng-Rern Lee
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Patent number: 5739182Abstract: The process of this invention can be utilized to stabilize tin-coupled rubbery polymers. This process involves adding a chelating diamine to the rubbery polymer after the tin coupling has been carried out. This invention more specifically discloses a process for improving the stability of a tin-coupled rubbery polymer which comprises adding a tertiary chelating amine to the tin-coupled rubbery polymer subsequent to the time at which the tin-coupled rubbery polymer is coupled. The tertiary chelating amine will preferably be a tertiary chelating alkyl 1,2-ethylene diamine, such as N,N,N',N'-tetramethylethylenediamine.Type: GrantFiled: January 31, 1997Date of Patent: April 14, 1998Assignee: The Goodyear Tire & Rubber CompanyInventors: Wen-Liang Hsu, Adel Farhan Halasa
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Patent number: 5736596Abstract: A process for the production of a molding, fiber or film which can be caused to fluoresce by an electrical voltage which comprises using linear mixtures comprising a fluorescent dye from the perylene series and a thermoplastic polymer having a degree of crystallinity of less than 10%.Type: GrantFiled: September 16, 1996Date of Patent: April 7, 1998Assignee: BASF AktiengesellschaftInventors: Thomas Heitz, Sylke Haremza, Andreas Greiner
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Patent number: 5714530Abstract: A synergistic stabilizer composition for polymers is described containing (i) a hydroxy-group containing triazine, and (ii) a 2,2,6,6-tetraalkyl piperidine compound. Also, described is a method of stabilizing polymers.Type: GrantFiled: June 7, 1995Date of Patent: February 3, 1998Assignee: Cytec Technology Corp.Inventor: Paul Sheldon Waterman
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Patent number: 5710197Abstract: Fluorescent pigments contain essentially a polymer matrix based on polymethyl methacrylate and a nonpolar fluorescent dye from the coumarin or perylene series, the polymer matrix being a crosslinked polymethacrylate or polyacrylate prepared by suspension polymerization.Type: GrantFiled: July 13, 1995Date of Patent: January 20, 1998Assignee: BASF AktiengesellschaftInventors: Wolfgang Fischer, Andreas Deckers, Norbert Guntherberg, Ekkehard Jahns, Sylke Haremza, Werner Ostertag, Helmut Schmidt
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Patent number: 5621052Abstract: Novel aminoplast anchored UV stabilizers are provided. Compared to unanchored stabilizers, the anchored stabilizers disclosed herein have increased compatibility with coating resins and have reduced volatility due to higher molecular weights resulting from anchoring. A process for preparing the anchored stabilizers by the reaction of unanchored stabilizers with alkoxymethylated aminoplasts in a sulfuric acid medium is also provided. The unanchored stabilizers include 2-(2-hydroxyaryl)benzotriazoles, 2-hydroxybenzophenones, 2-(2-hydroxyaryl)-4,6-diaryl-1,3,5-triazines, salicylic acid derivatives, 2-hydroxyoxanilides, and blocked derivatives thereof as well as mixtures of two or more stabilizers. The aminoplasts include alkoxymethylated derivatives of glycolurils, melamines, and benzoguanamines.Type: GrantFiled: December 29, 1992Date of Patent: April 15, 1997Assignee: Cytec Technology Corp.Inventors: Jeno G. Szita, Paul S. Waterman
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Patent number: 5523387Abstract: This invention relates to dyes in salt form which are useful for mass dyeing of synthetic polymers. In particular, this invention relates to ammonium or immonium salt-containing dyes that display good polymer affinity, and the methods for using those dyes to color polymeric substrates.Type: GrantFiled: June 14, 1994Date of Patent: June 4, 1996Assignee: Sandoz Ltd.Inventors: Jurgen Goldmann, Bansi L. Kaul
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Patent number: 5510403Abstract: A process for dyeing synthetic polyamide comprising applying to the polyamide a compound of formula I or II ##STR1## in which R.sub.2 is hydrogen, trifluoromethyl, halogen, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, cyano, nitro, hydroxyl, amino, C.sub.1-4 alkylamino, di-(C.sub.1-4)alkylamino, phenylamino, N-C.sub.1-4 alkyl-N-phenylamino; benzoylamino, acyl, acyloxy or acylamino,Me is a divalent metal atom;R.sub.1 is 1,2-phenylene, 1,2-, 2,3- or 1,8-naphthalene or 2,2'-diphenylene, the phenylene and naphthalene groups of R.sub.1 being unsubstituted or mono- or di-substituted by R.sub.2a where R.sub.2a has a significance of R.sub.2 other than hydrogen or by 3 or 4 halogen atoms; or in the naphthalene group two adjacent carbon atoms can be bridged by --NH--CO--NH--, --N.dbd.C(CH.sub.3)--NH--, --N.dbd.C(C.sub.6 H.sub.5)--NH--, --CO--N(C.sub.6 H.sub.5)--CO--, --CO--NH--CO--, ##STR2## R.sub.3 is ##STR3## where R is hydrogen or C.sub.1-4 alkyl unsubstituted or substituted by 1 to 4 groups selected from halogen, cyano, C.Type: GrantFiled: January 7, 1991Date of Patent: April 23, 1996Assignee: Sandoz Ltd.Inventor: Bansi L. Kaul
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Patent number: 5502208Abstract: Finely particulate 1,4-diketopyrrolo 3,4-c!pyrroles of formula ##STR1## wherein A is a radical of formula ##STR2## wherein R.sub.1 is 3-CN, 4-CN or ##STR3## in which at least 84% of the pigment particles have a Stokes equivalent diameter of .ltoreq.0.40 .mu.m.These pigments are distinguished by exceptional purity of shade, transparency, high gloss, good dispersibility and good rheology.Type: GrantFiled: July 21, 1994Date of Patent: March 26, 1996Assignee: Ciba-Geigy CorporationInventor: Olof Wallquist
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Patent number: 5500466Abstract: Internal mould release compositions suitable for use in the production of moulded articles by the RIM process, comprises a blend of a metal salt of an organic acid and a polysiloxane polymer having isocyanate reactive organic groups and optionally a compatibilizing amount of an amidine or imidate compound.Type: GrantFiled: May 17, 1995Date of Patent: March 19, 1996Assignee: Imperial Chemical Industries PLCInventor: Herbert R. Gillis
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Patent number: 5493011Abstract: Water-insoluble azo colorants, their preparation and use The invention relates to monoazo and disazo compounds of the formula (I) ##STR1## in which D is the radical of a carbocyclic or heterocyclic diazo or bisdiazo component, R.sup.1 and R.sup.2, independently of one another, are each a substituted or unsubstituted aryl or heteroaryl radical, X.sup.1 and X.sup.2, independently of one another, are each ring-forming ether oxygen or a substituted or unsubstituted imide grouping and n has the value 0 or 1, in which rings A and B, independently of one another, can each be additionally substituted and/or carry substituted or unsubstituted fused rings.These new compounds of the formula (I) are obtained by coupling diazotized amines or diamines of the type D--NH.sub.2 or H.sub.2 N--D--NH.sub.2 with (benzoxazol-2-yl)- or (benzimidazol-2-yl)-arylacetamides.Depending on the presence and length of alkyl chains, the compounds of the formula (I) are suitable for use as pigments, disperse dyes or oil-soluble dyes.Type: GrantFiled: November 6, 1992Date of Patent: February 20, 1996Assignee: Hoechst AGInventors: Rudiger Jung, Reinhold Deubel
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Patent number: 5484829Abstract: Internal mould release compositions suitable for use in the production of moulded articles by the RIM process, comprises a blend of a metal salt of an organic acid and a polysiloxane polymer having isocyanate reactive organic groups and optionally a compatibilizing amount of an amidine or imidate compound.Type: GrantFiled: October 11, 1994Date of Patent: January 16, 1996Assignee: Imperial Chemical Industries, PLCInventor: Herbert R. Gillis
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Patent number: 5476949Abstract: Finely divided 1,4-diketopyrrolo[3,4-c]pyrroles of the formula ##STR1## where A and B are each independently of the other a radical of the formula ##STR2## wherein at least 84% by weight of the particles have a Stokes equivalent diameter of .ltoreq.0.25 .mu.m, and mixtures thereof.The substituents R.sub.1 and R.sub.2 are defined in claim 1.These pigments are notable for a very pure hue and outstanding transparency.Type: GrantFiled: July 21, 1994Date of Patent: December 19, 1995Assignee: Ciba-Geigy CorporationInventors: Olof Wallquist, Gary Wooden, Thomas Eichenberger, Ingo Schloder